The cartoon character featured in "Jurassic Park" and unlockable in "LEGO Jurassic World" is Mr. DNA.
Mr. DNA appears in the original 1993 film during a cartoon presentation in Jurassic Park's Visitor Center. The animated character explains how InGen extracted dinosaur DNA from mosquitoes preserved in amber and filled genetic gaps with frog DNA.
In LEGO Jurassic World, Mr. DNA becomes a playable bonus character after the game's story levels are completed. Players can purchase him in free play for 500,000 studs, making him one of the game's most expensive character unlocks. His abilities include solving equation puzzles, using agility objects and shooting LEGO targets.
A common mix-up is confusing Mr. DNA with a real scientist or park employee. He is an in-universe educational mascot created to explain cloning to Jurassic Park visitors. The character also provides hints and dinosaur facts during the game.